/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingOperators/Public/BaseOps/SimpleMeshProcessingBaseOp.h
UpdateResultMeshNormals()recalculates normals
class FSimpleMeshProcessingBaseOp : public [UE::Geometry::FDynamicMeshOperator](API\Plugins\ModelingOperators\FDynamicMeshOperator)
TArray< FVector...
PositionBuffer